Heron Bay Weather Forecast

    • 55
    • 64

    Increasing Clouds

    • 52
    • 68

    Partly Sunny

    • 53
    • 73

    Partly Sunny

    • 54
    • 68

    Partly Sunny

    • 55
    • 72

    Mostly Sunny

    • 56
    • 79

    Mostly Sunny

Today 25 May San Francisco Bay Shoreline

Mostly cloudy in the morning then becoming sunny. Highs in the mid 60s. West Winds 10 to 20 Mph.

Tonight 25 May San Francisco Bay Shoreline

Mostly cloudy. Lows in the lower 50s. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Heron Bay Temperature Statistics

May Temperature

Hayward, Hayward Air Terminal (3.1 miles)

  • Lowest 4 May, 2025

    51.7 °F

  • Average May

    62.6 °F

  • Highest 9 May, 2025

    88.6 °F

Climate (2020–Present)

Hayward, Hayward Air Terminal (3.1 miles)

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  • Average Low 2020–2025

    52.1 °F

  • Average 2020–2025

    59.5 °F

  • Average High 2020–2025

    69.3 °F
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